7 Steps to Test and Calibrate Your Laser Level

In this article, we will explain how to test and calibrate a level tool, such as a laser level. This process is important to ensure that the tool is accurate and reliable for various applications.

• Laser Level
• Pen*1
• Small notes*4
• Screw Driver*1

• Install the laser tool on the equipped bracket and place it on a flat ground
• Turn on the side vertical laser beam and mark point A below the laser tool on the floor.
• Then, mark point B on the floor 5 meters away from point A and finally mark point C on the floor 5 millimeters away from point B

• Turn on the vertical laser beams of the front laser window and side laser window and move the laser tool to point B
• Align the cross point at the bottom of the laser tool to point B accurately and align the laser beam of the side laser window with point C

• Mark point D 5 meters away along the vertical line of the front window of the laser tool.
• Rotate the level horizontally by 90 degrees, align the cross point at the bottom of the laser tool to point D accurately, and align the laser beam of the side laser window with point A.
• Mark the vertical laser beam of the front window as a marquee at the position of point A

Measure the offset of point A and point E. The offset value should be less than 4.5 millimeters.If the offset value is more than the product set, the laser tool should be repaired and recalibrated.

Please notes that there is different offset value in different model and brand. When the product set the accuracy within ±3mm/10m, the offset value is not more than 6mm in 10m.

It is important to understand the principle of the machine and what causes accuracy errors. Generally, the accuracy of the machine may deviate due to various reasons such as falling or impact. For example, in an internal pendulum, since the bottom laser model for this machine is fixed with the pendulum, the accuracy of the bottom laser model needs to be adjusted by adjusting the balance of the whole pendulum. While the accuracy of the other three laser models can be adjusted by adjusting the four screws around. Therefore, there are two cases to adjust the accuracy of this machine.

The first case is to adjust the balance of the whole pendulum to achieve the accuracy adjustment of the bottom model.

• To adjust the balance of the whole pendulum to achieve the accuracy adjustment of the bottom model, there are two copper screws under the pendulum that can control the balance of the two directions of the bundle.
• If the weight of one side of the copper screw is heavier, it is necessary to tighten the copper screw so that the copper screw is close to the center of the pendulum to achieve balance on both sides.
• If the weight of one side of the copper screw is lighter, it is necessary to loosen the copper screw so that the copper screw is far away from the center of the pendulum to achieve balance on both sides.
• According to the principle of weight, the balance of the whole pendulum can be adjusted to achieve the precision adjustment of the bottom model.

The second case is to adjust the accuracy of other individual laser models separately.To adjust the accuracy of the laser model separately, it is mainly achieved by adjusting the four screws around.

• First, understand the principle of adjusting the laser model. There is a spherical chamfer at the bottom of the laser model to match with the whole of the pendulum and a certain gap is left.
• The rotation of the laser model is realized by adjusting the tightness of the screw. For example, the accuracy of the laser line can be adjusted by simultaneously tightening the screws on one side and loosening the screws on the opposite corner.
• Through this principle, the accuracy of each laser model can be adjusted separately.